If 125x 2010 find x - JAMB Mathematics 2008 Question
If 125x = 2010, find x
A
2
B
3
C
4
D
5
correct option: b
If 125x = 2010, find x
125x = 1 x 32 + 2 x 31 + 5 x 30
= 1 x 9 + 2 x 3 + 5 x 1
= 9 + 6 + 5
= 20
therefore, 1253 = 2010
x = 3
125x = 1 x 32 + 2 x 31 + 5 x 30
= 1 x 9 + 2 x 3 + 5 x 1
= 9 + 6 + 5
= 20
therefore, 1253 = 2010
x = 3
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